Cross-tablets at Palenque, [237], [238], [239].
Cross-worshippers, Chinese name for Christians, [305].
Cruciform structures, vaults under stelæ at Copan and Quirigua, [512];
at Mitla, Mexico, [513];
at Rome, [514];
buildings and churches of later period, [515];
at Byzantium, [515];
in Syria, [515];
in India, [516];
summary and conclusions, [544].